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<?php
/**
* @author Georg Ehrke <oc.list@georgehrke.com>
*
* @copyright Copyright (c) 2017 Georg Ehrke <oc.list@georgehrke.com>
* @license GNU AGPL version 3 or any later version
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OCA\DAV\CalDAV\Search;
use Sabre\DAV\Server;
use Sabre\DAV\ServerPlugin;
use OCA\DAV\CalDAV\CalendarHome;
class SearchPlugin extends ServerPlugin {
const NS_Nextcloud = 'http://nextcloud.com/ns';
/**
* Reference to SabreDAV server object.
*
* @var \Sabre\DAV\Server
*/
protected $server;
/**
* This method should return a list of server-features.
*
* This is for example 'versioning' and is added to the DAV: header
* in an OPTIONS response.
*
* @return string[]
*/
public function getFeatures() {
// May have to be changed to be detected
return ['nc-calendar-search'];
}
/**
* Returns a plugin name.
*
* Using this name other plugins will be able to access other plugins
* using Sabre\DAV\Server::getPlugin
*
* @return string
*/
public function getPluginName() {
return 'nc-calendar-search';
}
/**
* This initializes the plugin.
*
* This function is called by Sabre\DAV\Server, after
* addPlugin is called.
*
* This method should set up the required event subscriptions.
*
* @param Server $server
*/
public function initialize(Server $server) {
$this->server = $server;
$server->on('report', [$this, 'report']);
$server->xml->elementMap['{' . self::NS_Nextcloud . '}calendar-search'] =
'OCA\\DAV\\CalDAV\\Search\\Xml\\Request\\CalendarSearchReport';
}
/**
* This functions handles REPORT requests specific to CalDAV
*
* @param string $reportName
* @param mixed $report
* @param mixed $path
* @return bool
*/
public function report($reportName, $report, $path) {
switch ($reportName) {
case '{' . self::NS_Nextcloud . '}calendar-search':
$this->server->transactionType = 'report-nc-calendar-search';
$this->calendarSearch($report);
return false;
}
}
/**
* Returns a list of reports this plugin supports.
*
* This will be used in the {DAV:}supported-report-set property.
* Note that you still need to subscribe to the 'report' event to actually
* implement them
*
* @param string $uri
* @return array
*/
public function getSupportedReportSet($uri) {
$node = $this->server->tree->getNodeForPath($uri);
$reports = [];
if ($node instanceof CalendarHome) {
$reports[] = '{' . self::NS_Nextcloud . '}calendar-search';
}
return $reports;
}
/**
* This function handles the calendar-query REPORT
*
* This report is used by clients to request calendar objects based on
* complex conditions.
*
* @param Xml\Request\CalendarSearchReport $report
* @return void
*/
private function calendarSearch($report) {
$node = $this->server->tree->getNodeForPath($this->server->getRequestUri());
$depth = $this->server->getHTTPDepth(2);
// The default result is an empty array
$result = [];
// If we're dealing with the calendar home, the calendar home itself is
// responsible for the calendar-query
if ($node instanceof CalendarHome && $depth === 2) {
$nodePaths = $node->calendarSearch($report->filters, $report->limit, $report->offset);
foreach ($nodePaths as $path) {
list($properties) = $this->server->getPropertiesForPath(
$this->server->getRequestUri() . '/' . $path,
$report->properties);
$result[] = $properties;
}
}
$prefer = $this->server->getHTTPPrefer();
$this->server->httpResponse->setStatus(207);
$this->server->httpResponse->setHeader('Content-Type',
'application/xml; charset=utf-8');
$this->server->httpResponse->setHeader('Vary', 'Brief,Prefer');
$this->server->httpResponse->setBody(
$this->server->generateMultiStatus($result,
$prefer['return'] === 'minimal'));
}
}
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